BAGHDAD — A series of bombings, mainly targeting Shiite neighborhoods, killed at least 13 people in Baghdad on Saturday, said Iraqi officials.

Police said one bomb exploded near a small restaurant in Baghdad’s mainly Shiite southeastern district of al-Zafaraniyah, killing four people and wounding 13.

Later, police said, a bomb blast missed a passing police patrol but killed three civilians and wounded eight in western Baghdad. They say the blast also damaged several cars.

At night, a blast near a cafe in Baghdad’s Shiite district of al-Ameen killed three people and wounded eight others.

Also, a bomb exploded near a bus stop and a line of shops selling vegetables and fruit in Baghdad’s Shiite neighborhood of al-Mashtal, killing three people and wounding seven others.

Medical officials in nearby hospitals confirmed the casualties from all the attacks. All officials spoke on condition of anonymity because they were not authorized to talk to journalists.

Iraq sees near-daily attacks, mainly targeting the country’s Shiite majority and security forces. The attacks often are claimed by the Islamic State terrorist group.

Plunging oil prices have wreaked havoc on Iraq’s budget, and it cannot pay for the weapons, ammunition and equipment it needs to beat back the Islamic State terrorists from large swaths of its territory, Iraq’s prime minister said Thursday.

Iraq has asked the United States and its allies to defer payments on some munitions it urgently needs, Prime Minister Haider al-Abadi said at a conference of 21 nations most actively involved in combating Islamist terrorists in Iraq and Syria. With oil revenue responsible for 85 percent of the nation’s budget, Abadi said, the 40 percent drop in prices over the past year has been “disastrous” for Iraq’s government.

“We do not want to see a reverse of our military victory due to our budget and fiscal problems,” he said.